Dez sits next to 4 phonetic neighbors — Des, Dex, and Lex are the closest matches by sound. Most share Dez's Irish Gaelic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"short form of Desmond (south Munster, Ireland)"
"maker, builder"
"youth, pup"
"growth, increase, abundance"
"son of God-peace"
"place name origin: a hundred in Cornwall, England"
"cushion (alternative Irish etymology)"
"who is like God? (rhetorical — no one is)"
"village of the Danes"
"oak grove, oak tree"
"Roman clan name Horatius (origin uncertain)"
"variant of Tyson"
"dark red, crimson"
"handsome at birth"
"modern American creation, one of a kind"
"spear"
"modern American creation"
"invented name; variant of Milo (mild, merciful)"
"fire of God"
"having supreme power"
"serious, sincere, determined"
Similar sound: These names share phonetic patterns with Dez — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic origins, giving them the same cultural heritage as Dez.
Rhythm: Dez is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.